Rock City at Mount Diablo [Bouldering, Wind Caves, RC Cars!]

Maverick Kelly’s 52 Day Trips
3 min readNov 18, 2021


Rock City Mt Diablo Danville, CA — a few wind caves to climb into

Rock City Mt Diablo is a geological wonder at the top of Mt Diablo. It’s a bunch of rocks you can easily hike around with “wind caves” to duck into.

We decided to drive instead of take the 6 mile hike (we had a 6-year old). Here’s the address: S Gate Rd, Danville, CA 94506. There’s plenty of bathrooms and areas to picnic..

Mt Diablo Entrance (you pass this on your way to Rock City)

The Trails are nice and easy. We focused on the “Trail Through Time” trail…

…and our 6-year old cruised right through:

Rock City Mt Diablo’s “Trail through Time” trail

Here’s one of the wind caves:

perhaps the largest cave at Rock City Mt Diablo
Here’s a smaller wind cave. Rock City Mt Diablo

This rock was huge (check out the people on top for perspective).

“Big Rock”

We went on a hot day. But the beauty is that you can get shade just about anywhere because of the size of the rocks. And the rocks were nice and cool to lay on:

Rock City Mt Diablo Trail Map
Mt Diablo State Park Map

Sentinel Rock

There’s this standalone rock called Sentinel Rock with guard rails to climb up.

Sentinel Rock at Rock City Mt Diablo

RC Cars Climbing Rocks

We stumbled across some guys getting their remote-controlled cars to climb up the rocks. I asked one how much an RC car like that cost and he said $1,000.

Would we go back to Rock City? Absolutely! Enjoy!



Maverick Kelly’s 52 Day Trips

Hi! I’m Maverick. My mommy, daddy & me are on a mission to take 52 day trips around the San Francisco Bay Area! Thx for joining in the fun!